Don't automatically dereference symlinks in tree/recursive

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add `--group-directories-first` as an alias for `--group-dirs=first` to improve compatibility with `coreutils/ls`
 ### Fixed
 - Support non-bold bright colors [#248](https://github.com/Peltoche/lsd/issues/248) from [meain](https://github.com/meain)
+- Don't automatically dereference symlinks in tree/recursive [#637](https://github.com/Peltoche/lsd/issues/637) from [meain](https://github.com/meain)
 
 ## [0.21.0] - 2022-01-16
 ### Added

src/meta/mod.rs

@@ -129,13 +129,17 @@ impl Meta {
                 }
             }
 
-            match entry_meta.recurse_into(depth - 1, flags) {
-                Ok(content) => entry_meta.content = content,
-                Err(err) => {
-                    print_error!("{}: {}.", path.display(), err);
-                    continue;
-                }
-            };
+            let dereference =
+                !matches!(entry_meta.file_type, FileType::SymLink { .. }) || flags.dereference.0;
+            if dereference {
+                match entry_meta.recurse_into(depth - 1, flags) {
+                    Ok(content) => entry_meta.content = content,
+                    Err(err) => {
+                        print_error!("{}: {}.", path.display(), err);
+                        continue;
+                    }
+                };
+            }
 
             content.push(entry_meta);
         }

tests/integration.rs

@@ -504,6 +504,42 @@ fn test_tree_d() {
         .stdout(predicate::str::is_match("├── one.d\n│   └── one.d\n└── two.d\n$").unwrap());
 }
 
+#[cfg(unix)]
+#[test]
+fn test_tree_no_dereference() {
+    let tmp = tempdir();
+    tmp.child("one.d").create_dir_all().unwrap();
+    tmp.child("one.d/samplefile").touch().unwrap();
+    let link = tmp.path().join("link");
+    fs::symlink("one.d", &link).unwrap();
+
+    cmd().arg(tmp.path()).arg("--tree").assert().stdout(
+        predicate::str::is_match("├── link ⇒ one.d\n└── one.d\n    └── samplefile\n$").unwrap(),
+    );
+}
+
+#[cfg(unix)]
+#[test]
+fn test_tree_dereference() {
+    let tmp = tempdir();
+    tmp.child("one.d").create_dir_all().unwrap();
+    tmp.child("one.d/samplefile").touch().unwrap();
+    let link = tmp.path().join("link");
+    fs::symlink("one.d", &link).unwrap();
+
+    cmd()
+        .arg(tmp.path())
+        .arg("--tree")
+        .arg("-L")
+        .assert()
+        .stdout(
+            predicate::str::is_match(
+                "├── link\n│   └── samplefile\n└── one.d\n    └── samplefile\n$",
+            )
+            .unwrap(),
+        );
+}
+
 fn cmd() -> Command {
     Command::cargo_bin(env!("CARGO_PKG_NAME")).unwrap()
 }